Composition for cementing cloth, wood, leather, or other substances.



UNITED STATES Patented December 27, 1904.

PATENT OFFIC OARLETON ELLIS, OF BOSTON, MASSACHUSETTS.

COMPOSITION FOR CEMENTING CLOTH, WOOD, LEATHER, OR OTHER SUBSTANCES.

SPECIFICATION forming part of Letters PatentNo. 778,232, dated December27, 1904.

I Application filed May 2, 1908. Serial No. 155,365-

To all whom, it may concern: 7

Be it known. that I, CARLE'roN ELLIS, of

Boston, in the county of Suffolk and State of Massachusetts, haveinvented certain new and useful Improvements in Compositions forGementingOloth, Wood, Leather, or other Substances, of which vthefollowing is a specior gum resins or Venice turpentine, Canada balsam,850., may be added to the nitrocellulose to give better body. Thenitrocellulose used is preferably in the form of the lower nitrates,although the higher nitrates may be also employed.

A suitable cement for general use may be made by dissolving ten poundsnitrocellulose and four pounds of oamphor in a mixture composed of eightgallons of acetone, one

gallon amyl acetate, and one quart creosote. In the use of this cementif the material is porous apply a thin coat as a sizing to each surface.This will dryinafewminutes. Then rapidly apply a second coat. Pressingtogether is desirable after joining. 1

Up to the present time no waterproof cement has been produced which hasproved to be strong and flexible and at the same time quick-drying. Theobject of this invention is to prepare such a cement. A solution ofnitrocellulose compounds, as described above, gives a flexiblequick-drying cement, which is given great strength by the addition ofthe softening agent described. Y What I claim, and desire to secureLetters Patent of the United States, is g The herein-described cementingcomposition consisting of about ten pounds nitrocellulose and fourpounds of camphor dissolved in a mixture composed of about eight gallonsacetone, one gallon of amyl acetate Witnesses:

HENRY B. CHALMERS,

NATHANIEL L. FOSTER.

